Plant 1: give it a couple of days but check on them, looks like they forming balls but i cant tell for sure yet
Plant 2: for sure a male
Plant 3: wait a couple of days again this might be a male.
Plant 4: wait a couple of days again

dont get high hopes though i understand its been a lot of work and fun, to end in that wouldnt be much atleast you get one gal to enjoy with
P.S. get a second opinion as i am still on my first grow and i had fem'd seeds from a friend, so i am not first hand experienced with knowing for sure what males look like, nor do i know females, all i know mine dont have balls hehe

Goodluck on everything and dont be down!! you're doing good

-Mary <3